[ptb]

I am building a covered porch type structure. The one side is anchored off the back of the 2 story house using a 2x10 ledger board lagged into studs every 16". I have hangers 16" on center on that board. I have (4) 4x4 PT columns spaced 10' apart with a total distance of 30 or so feet. The distance from the ledger board to the 4x4 posts is 14'. The 14' "joists" will be 2x8 and tie into a 2x10 bolted onto the 4x4 posts. It will have a very light weight roof that will be sheeted with 1/2 ply. The ceiling will be t&g material. My question is if the 10' spaced 4x4s is sufficient for the load? thanks in advance,Pete

 

[Arey85]

What are the rafters? Pitch? Height of porch?

 

[ptb]

the rafters are 2x8 doug fir and the pitch will only be 1/4" per foot, so a drop of less than 4" in 14". The height to the finished ceiling will be 8'

 

[jklingel]

very roughly (from a book, i am no engineer) 650 lbs, uniformly loaded, per 2x8. from experience, that is an iffy situation if you have any wind or snow load.

 

[Gary in WA]

Get a permit for your structural change and added load to the 1st floor studs. Your H.O. Insurance love the paper trail and it will not be contested at selling......

Gary

 

[Gary in WA]

Please only post the same exact question in one forum, thank you. I removed your duplicate post in "Carpentry".

Carry on...............


Gary